Finding the Fourth Proportional to 2,189.42, 3,023.45 and 1,404.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.42 : 3,023.45 = 1,404.83 : x
2. Step 2: Convert to fraction form
   2,189.42/3,023.45 = 1,404.83/x
3. Step 3: Cross multiply
   2,189.42x = 3,023.45 × 1,404.83
4. Step 4: Simplify right side
   2,189.42x = 4,247,433.26
5. Step 5: Solve for x
   x = 4,247,433.26/2,189.42
6. Step 6: Final answer
   x = 1,939.98